Brass Dust?

[Gahonda]

A couple of days ago I fired about a 100 rounds and when I got home I noticed a lot of brass particles in my receiver. Any thoughts? Is this normal? Thanks.

 

[mkk41]

Yep! Brass is softer than steel and all them steel part moving around , and the brass case rubbing against the various parts , some with sharp edges , makes for some shavings.

Extraction after firing for instance.
The brass case is stationary while the bolt turns in the bolt carrier during cycling. The extractor and ejector , and their respective cuts/holes in the bolt will often shave a bit of brass. No worries.

 

[Gahonda]

Thanks-now I feel better.

 

[mkk41]

Cleaning my .308 now after 100rds today and yep , the bolt face has brass dust all over it. Wish it was gold dust!

 

[Gahonda]

Now I see the reasoning for cleaning often - if not it could cause problems.

 

[mkk41]

A blast of air or Gunscrubber (or non-chlorinated brake cleaner) , into the extractor and ejector followed by a drop of Break-Free or some lubricant will keep things going. Never heard of one getting so packed it failed.

 

[LlindeX]

A blast of air or Gunscrubber (or non-chlorinated brake cleaner) , into the extractor and ejector followed by a drop of Break-Free or some lubricant will keep things going. Never heard of one getting so packed it failed.

Don't know for certain, but I'd bet a dime to a donut you were never in 'Nam, were you?